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Darya [45]
3 years ago
9

Which of the following has the greatest inertia? Question 4 options: A jet A toy A car A pick-up truck.

Physics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

Answer: (4) a 20.0-kg mass has the greatest inertia.

Explanation:

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Define cyber law and its types.​
butalik [34]

Answer:

Cyber Law is a generic term referring to all the legal and regulatory aspects of the internet. Everything concerned with or related to or emanating from any legal aspects or concerning any activities of the citizens in the cyberspace comes within the ambit of cyber laws.

<h2>Types :-</h2>
  • Copyright
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Explanation:

<h2>HOPE IT HELPS YOU!! </h2>
5 0
2 years ago
high frequency sound waves have a shorter wavelength and a higher A. amplitude B. pitch C. wavelength? than low frequency sound
gizmo_the_mogwai [7]
Pitch of the sound increases as frequency increases. 
choose B pitch 
8 0
3 years ago
Read 2 more answers
An electron de-excites from the fourth quantum level to the third and then directly to the first. Two frequencies of light are e
4vir4ik [10]

Answer:

The answer is explained below.

Explanation:

The energy emitted during the de-excitation of an electron from a higher energy level to a lower energy level is directly proportional to the frequency of the emitted light.

Here, the total sum of the energies of 2 frequencies of light emitted in different stages is equal to the energy of a single frequency of light during the de-excitation of fourth level to ground level directly.

Hence the total sum of of the frequencies of 2 lights emitted in different stages is equal to the frequency of single frequency of light emitted during the de-excitation  from fourth level to ground level directly.

The some of the energies of 2 frequencies emitted by one electron is equal to the energy of a single frequency when electron jumps directly.

6 0
3 years ago
Is a baseball and cannon are dropped from the same height at the same time, which ball will hit the ground first?
lara31 [8.8K]
If you include the effects of falling through air, then you have to know the
shape, size, weight, and surface texture of the objects.  You also have to
know the height from which they're dropped, and the temperature, pressure,
and humidity of the air.  All these things make a difference in how they fall.

If you ignore the effects of falling through air, like build a giant metal tank
and pump all the air out of it, and ONLY talk about the effects of gravity, then
ALL OBJECTS accelerate at the same rate.  If you drop two things from the
same height at the same time, then they both hit the ground at the same time,
traveling at the same speed, no matter what they are.  They could be a piece of
tissue and a car ! 

There are several museums where they have a big glass pipe that you can
see through, and they pump the air out of the pipe and drop a feather and a
bowling ball from the top inside at the same time, and they both reach the
bottom together.   

If gravity is the only force on an object, then all objects fall at the same rate.
8 0
3 years ago
Read 2 more answers
A heat pump used to heat a house runs about one-third of the time. The house is losing heat at an average rate of 22,000 kJ/h. I
Natali5045456 [20]

The power that heat pump draws when running will be 6.55 kj/kg

A heat pump is a device that uses the refrigeration cycle to transfer thermal energy from the outside to heat a building (or a portion of a structure).

Given a heat pump used to heat a house runs about one-third of the time. The house is losing heat at an average rate of 22,000 kJ/h and if the COP of the heat pump is 2.8

We have to determine the power the heat pump draws when running.

To solve this question we have to assume that the heat pump is at steady state

Let,

Q₁ = 22000 kj/kg

COP = 2.8

Since heat pump used to heat a house runs about one-third of the time.

So,

Q₁ = 3(22000) = 66000 kj/kg

We known the formula for cop of heat pump which is as follow:

COP = Q₁/ω

2.8 = 66000 / ω

ω = 66000 / 2.8

ω = 6.66 kj/kg

Hence the power that heat pump draws when running will be 6.55 kj/kg

Learn more about heat pump here :

brainly.com/question/1042914

#SPJ4

5 0
2 years ago
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